Consolidated Statements of Operations (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Provision for income taxes related to gain on sale of discontinued operations	$ 0	$ 5.4	$ 0
Provision (benefit) for income taxes related to income (loss) from discontinued operations	$ 0	$ (0.8)	$ 1.1

Income tax expense or benefit attributable to Income or Loss from discontinued operations during the phase-out period.

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